My Erdos number is 4.
I am a super soccer fan. Bundesliga is my favourite league. I support the following great teams: Bayern Munich, Hannover 96, Beijing Guoan, and Tsinghua-EE.
When I was in North Carolina, I enjoyed hiking and kayaking a lot.
I like playing both Chess and Chinese Chess. I won the 2nd/3rd place of the Chess team tournament at Tsinghua university in 2005/2008. Also, I won the 3rd place of the Chinese Chess team tournament at Tsinghua university in 2003.
The countries I have visited: